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227170 (2005 QQ38)
Classification: Main-belt Asteroid          SPK-ID: 2227170
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450762635065074 5.272e-08  
a 2.391132074341721 1.1976e-08 au
q 2.04423556744566 1.2456e-07 au
i 4.688766631946808 4.408e-06 deg
node 137.3548262684676 6.246e-05 deg
peri 237.743073253225 6.4159e-05 deg
M 20.18693563392715 1.2973e-05 deg
tp 2459124.769352168987
(2020-Oct-02.26935217)
4.8796e-05 TDB
period 1350.528565283839
3.70
1.0146e-05
2.778e-08
d
yr
n .266562299572197 2.0025e-09 deg/d
Q 2.738028581237783 1.3713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      328  
   data-arc span      5708 days (15.63 yr)  
   first obs. used      2005-06-17  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:42  

Additional Information
 Earth MOID = 1.0479 au 
 Jupiter MOID = 2.73185 au 
 T_jup = 3.513 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.22   n/a E2021B55  

227170 (2005 QQ38)          Discovered 2005-Aug-25 by CINEOS at Campo Imperatore
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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